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Biomedical subjects

F J Wenzel

Publications and source records attributed to F J Wenzel.

At least 19 recordsLinked to original sources

Competencies for health management practice: a practitioner's perspective.

The current health care environment will require executive leadership with a new set of management competencies to effectively lead and manage the various components of a restructured health care delivery system. The traditional management skills of planning, organizing, directing, controlling, and staffing resources will remain relevant, but the true measure of professional success will be the development of conceptual skills. This means the ability to look at the health care enterprise as a whole, and recognize how changes in the environment shape your strategic mission, goals, and objectives. The successful health care leader will have a demonstrated ability to apply these conceptual skills to the development of information systems and integrated networks that position their organization to accept capitated risks. This paper examines the United States and Canadian health care systems from the perspective of both the more traditional hospital and the emerging medical care organizations. New importance of the team approach to leadership and management and all that entails is stressed.

Canada↗

Managing managed care. Grouping together is the answer.

Working through an organization is the only way to manage in a managed care system. To be successful we need sophisticated management information systems, outstanding leadership and management, and a discretionary income distribution system. We must be willing to accept venture risk even though we will not win all the time. We must be aggressive in developing these systems. In order to survive, the successful organization will have to manage first, itself; second, the buyer of care; and third, its own image. It must also learn how to deal with the competition.

Data Collection↗

Medicare risk contracting. Lessons from an unsuccessful demonstration.

The Tax Equity and Fiscal Responsibility Act of 1982 provided a full-risk Medicare capitation financing option for health maintenance organizations and competitive medical plans. Two rounds of demonstrations were conducted, followed by the publication of final regulations in January 1985. The first-round demonstration at Marshfield, Wis, was operational for 28 months. Thirty-seven percent of all resident beneficiaries enrolled. Aggregate losses exceeded $3 million (11.6% of revenue). Management implemented increasingly more stringent utilization review. Overall hospital utilization declined 261.7 days per 1000 from fiscal year 1981 to 1982; nonetheless, federal reimbursement was insufficient to meet program costs and the demonstration was terminated. The central reimbursement method used in Medicare risk contracting (adjusted average per capita cost) does not adequately control for enrollment selection, unmet medical need, or recent regional cost variations. Reimbursement set at 95% of estimated fee-for-service costs does not recognize, and in the long run will not support, an efficiently operating delivery system.

Centers for Medicare and Medicaid Services, U.S.↗

Conflict: an imperative for success.

Conflict in organizations of any type is inevitable. Medical institutions, particularly multispecialty clinics, are no exception. This paper presents an examination of the anatomy of conflict in group practice settings. Several case studies, including the "Hunterdon Experiment," are presented to illustrate the outcome of conflict situations where management was unable to direct its energy to productive ends. Recommendations are made for identifying, considering, and resolving conflicts in a proactive fashion. The conflict management role of the top management of the organization is described, with particular emphasis on the pivotal position of the Medical Director.

Conflict, Psychological↗

Combined gynecologic surgical procedures and cholecystectomy.

This report presents our experiences with combined gynecologic surgical procedures and cholecystectomy from 1976 to 1983. The review evaluated risks, cost, and hospital stay in combined surgical procedures. Hospital charts were reviewed in 46 cases. The patients were compared with 178 patients undergoing total abdominal hysterectomy and bilateral salpingo-oophorectomy in 1981. Of the 46 patients reviewed, 22 (47.8%) had preoperative diagnosis of cholelithiasis. We believe it appropriate to combine gynecologic surgical procedures with cholecystectomy when indicated. This eliminates a significant postoperative complication, cholecystitis, a second general anesthetic, and future hospitalization with additional time off work and patient recovery time.

Castration↗

A model of rural health care. Consumer response among users of the Marshfield Clinic.

Comparisons of prepaid, Medicaid and fee-for-service patients using the Marshfield Clinic and affiliated non-Clinic physicians indicate that a well-organized multispecialty group can successfully provide accessible and responsive care to rural populations and integrate varying types of payment systems. Most patients were highly satisfied, but differences in satisfaction among varying subgroups were substantially attributable to access barriers. Patients in the Greater Marshfield Community Health Plan (prepaied patients) were most generally satisfied, but patients using non-Clinic affiliates were higher on socioemotional satisfaction, reflecting certain barriers to personal care in complex organizational settings.

Community Health Services↗

The limited utility of fibrinogen I 125 leg scanning.

Using venography as the reference procedure, this study examined the utility of fibrinogen I 125 scanning for the detection or demonstration of deep venous thrombosis. The results demonstrate the inability of leg scanning to detect accurately the presence or absence of thrombi in the deep venous system. Most striking was the lack of sensitivity of this procedure in areas where the propensity for embolization is greatest. Sensitivity is extremely low in the anatomic areas where leg scanning demonstrates reasonable specificity. The results are nearly identical in the extremity not operated upon. The validity of all prior studies relying heavily or exclusively on 125I leg scans to determine the presence or absence of thrombi must be critically reassessed.

Fibrinogen↗

Can the frequency of myocardial infarction be reduced during coronary artery operations.

A prospective experiment was carried out in 56 patients undergoing coronary artery revascularization to determine whether those having a glucose-insulin-potassium (GIK) perfusion during the procedure would have fewer myocardial infarctions (MI) compared with patients given a control perfusion of Normosol-R. Six patients (11%) developed an MI, defined as a 24-hour creatine phosphokinase MB isoenzyme value of 100 IU per liter or greater. Four (13%) had control perfusions and 2(8%) had GIK perfusion. One MI in a double-graft recipient who had GIK perfusion occurred because of a technical surgical error; therefore, the corrected MI rate was 13% in control patients compared with 4% for the GIK group. These data, as well as the more frequent spontaneous defibrillation in patients who had GIK perfusion, suggest that GIK was of benefit.

Blood Glucose↗

Visualisation of thrombi with technetium-99m urokinase. A negative report.

Direct imaging of thrombi with isotopically labelled agents would provide a convenient atraumatic method of diagnosing deep venous thrombosis. Urokinase labelled with technectium-99m has many theoretical advantages and successful use of this agent has been reported. A method for tagging urokinase with Tc-99m has been developed which preserves the clot-lysing ability of the urokinase. The thrombus imaging previously reported has not been duplicated.

Acute Disease↗

Precipitating antibodies in a midwest dairy farming population toward the antigens associated with farmer's lung disease.

A survey of the frequency of precipitins to the antigens of the thermophilic actinomycetes and Aspergillus species was conducted on serum samples from 1,045 farmers obtained at a 3-day exposition on modern farm equipment and farming practices in central Wisconsin. Each farmer filled out a questionnaire including socioeconomic information, lung disease history, exposure history, and smoking history. Precipitins were detected by the double-diffusion method. The antigen panel included eight thermophilic actinomycetes species and a mixture of Aspergillus species. Precipitins were found in the sera of 93 famers (8.9%). The distribution of positive precipitins was: Micropolyspora faeni 63 (67.7%), Thermoactinomyces vulgaris 7 (7.5%), Thermomonospora viridis 2 (2.2%), M. faeni + T. viridis 16 (17.2%), M. faeni + T. vulgaris 1 (1.1%), Aspergillus species 4 (4.3%). Of all the parameters tested for in the questionnaire, those with positive serology differed significantly from the whole population only in that a higher proportion of the positives reported exposure to silo gas and illness after uncapping silos. Comparison of the size of the farm and the number of dairy cows in the state of Wisconsin with the population samples indicated that the sample population was skewed toward those with larger farms and larger dairy herds. This study confirms that a significant proportion of the farm population in Wisconsin does have precipitins to the microorganisms associated with farmer's lung disease. Follow-up studies to establish the relationship between the positive precipitin reactions to the presence of clinical disease are now under way.

Antigens, Bacterial↗

Quadruple coronary artery bypass grafting.

In our last 150 consecutive revascularization operations, 30 patients (20%) have had 4 or more bypass grafts. One patient died after quadruple grafting (mortality, 3%). Twenty-two (75%) of the survivors have been rehabilitated to active work status and 25 (86%) were considered by their cardiologists to have improved function postoperatively by New York Heart Association criteria. Preoperatively 15 patients (50% of the group) had either a markedly diminished ejection fraction (EF) or extreme elevation in left ventricular end-diastolic pressure (LVEDP) or both. Complete revascularization, with resection of ventricular aneurysms when present, can be carried out successfully in a high-risk group of patients. Elevated LVEDP or diminished EF per se is not a valid contraindication to myocardial revascularization.

Adult↗

The prevalence of farmer's lung in an agricultural population.

Four hundred seventy-one persons associated with farming or dairy production were surveyed by means of a questionnaire for evidence of hypersensitivity lung disease due to inhalation of moldy hay or grain (farmer's lung). Of these, 172 were evaluated with spirometry, serologic studies, and chest roentgenographs. A history typical of the farmer's lung syndrome was given by 14 of the 471 subjects (3.9 per cent). Precipitating antibodies to Micropolyspora faeni were identified in sera from 2 of these 14 subjects (14 per cent), and spirograms were abnormal in 4 (28 per cent). The prevalence of farmer's lung in this community (i.e., 3 per cent) is comparable to that found in epidemiologic studies in Britain and Scotland. Farmer's lung disease may be an important occupational illness of dairy and cattlemen in this country, but the diagnosis may be overlooked frequently because of the lack of patient and/or physician awareness.

Farmer's Lung↗

Open pulmonary biopsy. Nineteen-year experience with 416 consecutive operations.

Four hundred and sixteen open pulmonary biopsies through limited thoracotomies are reported. Tissue sufficient for diagnosis was obtained in all cases. Case selection, operative technique, spectrum of diagnoses, complications, and comparisons with other techniques are defined. Diagnoses by category were as follows: occupational, 105 patients (25 percent); neoplastic disease, 80 patients (19 percent); specific histologic diagnosis, (ie, sarcoidosis), 70 patients (17 percent); specific infection, 23 patients (6 percent); vascular diagnosis, 16 patients (4 percent); and nonspecific pulmonary disease, 122 patients (29 percent). Pneumothorax, minor in most cases, was the most common complication. It occurred in 97 (23 percent) of the patients, but only 24 (6 percent) required the placement of a chest tube. Pleural effusion occurred in 106 patients (25 percent) and was minor. Hemothorax occurred in two (0.5 percent) and superficial wound infection in three (0.7 percent). Overall mortality was 4.5 percent (19 patients). Only two deaths (0.4 percent) were related to the procedure. Open pulmonary biopsy remains our diagnostic method of choice in diffuse lung disease of undetermined etiology.

Adolescent↗

Detection of covert myocardial sarcoidosis by scalene node biopsy.

The antemortem diagnosis of myocardial sarcoidosis is rare in patients without overt signs of the disease. Two patients are presented to alert physicians to the value of early scalene node biopsy when sarcoidosis could be the cause of marked disturbances in cardiac conduction. The first patient, aged 29 years, had first, second, and third degree atrioventricular block and intermittent left and right bundle-branch block; the second, aged 59 years, had second degree atrioventricular block and complete right bundle-branch block. Both had diagnoses of sarcoidosis based on scalene node biopsy. The cardiac conductive disturbance improved, and the symptoms disappeared with steroid therapy.

Adult↗

The coin lesion story: update 1976. Twenty years' experience with thoracotomy for 179 suspected malignant coin lesions.

We reviewed 179 patients who had undergone thoracotomy and resection of a suspected malignant coin lesion of the lung over the past 20 years to see if a policy of early thoracotomy was therapeutically valid. The average diameter of all lesions was 1.6 cm; the average diameter of 27 malignant lesions (15 percent) was 1.8 cm. Follow-up of the 27 patients with malignant neoplasms was 100 percent. The present survival rate of the 19 patients with primary lung cancer is 89 percent (17/19). Of 12 cases of primary lung cancer followed for five years, ten (83 percent) survived. The five-year survival of the eight patients with metastatic lesions was 25 percent (2/8). There were no postoperative deaths and few serious postoperative complications (four patients or 2 percent). Very small primary lung cancers detected and treated early do have the same poor prognosis as larger primary cancers.

Adenocarcinoma↗